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AA Section 8-7
The document discusses powers and roots of negative numbers. Some key points covered include: - When n is even, n√x is positive for any real number x. When n is odd, n√x is positive if x is positive and negative if x is negative. - For negative numbers x and y, x^y = xy. - We can take nth roots of negative numbers when n is an odd integer and x is negative. In this case, the real nth root of x is -x^(1/n). - We cannot take even roots of negative numbers. It provides examples of simplifying expressions with negative powers and roots.
